CN103574229B - Vacuum heat insulation materials, refrigerator, employ the equipment of vacuum heat insulation materials - Google Patents
Vacuum heat insulation materials, refrigerator, employ the equipment of vacuum heat insulation materials Download PDFInfo
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- CN103574229B CN103574229B CN201310056629.3A CN201310056629A CN103574229B CN 103574229 B CN103574229 B CN 103574229B CN 201310056629 A CN201310056629 A CN 201310056629A CN 103574229 B CN103574229 B CN 103574229B
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
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- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
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- 239000005388 borosilicate glass Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
Abstract
It is an object of the invention to provide a kind of vacuum heat insulation materials making heat-insulating property improve and refrigerator.Vacuum heat insulation materials (50) possesses the core (51) of fiber assembly and covers the lining material (53) with gas barrier property of core (51), it is characterized in that, the thickness (mm) when ordinance load being applied on fiber assembly is divided by every 1m of fiber assembly2Weight (kg/m2) value i.e. comprcssive strength (mm/(kg/m2)) it is more than 23.
Description
Technical field
The present invention relates to vacuum heat insulation materials, refrigerator, employ the equipment of vacuum heat insulation materials.
Background technology
In recent years, according to viewpoint, the viewpoint of energy-saving of environment of preserving our planet, research improves household appliances and the thermal insulation of industrial equipment.As equipment being carried out adiabatic adiabator, using resin foam, organic and inorganic fiber, in the case of thermal insulation to be improved, needing to thicken the thickness of adiabator.If the thickness of adiabator is thickening, then the volume that equipment is overall increases, and in the case of not changing volume, can cause can the ratio step-down in space of installing component etc..Therefore, it is proposed to the vacuum heat insulation materials that thermal insulation is more excellent than resin foam, inorfil etc..Vacuum heat insulation materials is by the lining material with gas barrier property is done pouch, puts into the getter of core and the gas absorption being made up of fiber assembly in inside, after bag inner pressure relief, the end of bag is carried out sealing and makes.Compared with the adiabators such as conventional resin foam, inorfil, there is the thermal insulation of 20 ~ 40 times, even if therefore the lower thickness of adiabator also is able to carry out sufficient thermal insulation.
It addition, carried out various thermal insulation for improving vacuum heat insulation materials, improved functional research.
As the background technology of the art, there are Japanese Unexamined Patent Publication 2006-38122 publication (patent documentation 1), Japanese Unexamined Patent Publication 2011-236953 publication (patent documentation 2).
In patent documentation 1, describe following vacuum heat insulation materials, i.e., being made up of the outsourcing material with gas barrier property of core, moisture adsorbent, the above-mentioned core of covering and above-mentioned moisture adsorbent, above-mentioned core is that with the low-melting 450 DEG C of heating pressurizations 5 minutes than glass, the staple glass fibre of fiber diameter 3～5 μm is formed as tabular.
In patent documentation 2, describe following vacuum heat insulation materials, i.e., there is core and cover the gas-barrier films of above-mentioned core, it is below more than average 3 μm 8 μm that this core is formed as the fibre diameter of the fiber laminate of inorganic system or organic system, and a length of average more than 2mm below the 10mm of fiber, above-mentioned vacuum heat insulation materials is characterised by, its propagation direction of the above-mentioned vacuum heat insulation materials i.e. voidage in bearing of trend cross section is less than more than 80% 85%, and its adiabatic direction i.e. voidage in thickness direction cross section is more than 85% and discontented 100%.
Prior art literature
Patent documentation 1: Japanese Unexamined Patent Publication 2006-38122 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2011-236953 publication
But, vacuum heat insulation materials described in patent documentation 1 uses pressure sintering, and easily melting the fibre diameter of glass cotton tiny is the fiber of 3～5 μm.
Further, since the contact point that the pressure that pressurization obtains acts between fiber, thus fiber deposition each other.
It addition, the part after deposition becomes the passage of heat propagating heat in adiabator, the thermal conductivity of vacuum heat insulation materials is therefore caused to decline.
So, constituting in the fiber of the core that conventional vacuum heat insulation materials is used, the propagation of the heat caused because of deposition and the propagation of heat, the i.e. deterioration of the thermal conductivity in vacuum heat insulation materials that cause because of the fracture of fiber become problem.
It addition, a length of average more than 2mm below the 10mm that is fiber of the vacuum heat insulation materials described in patent documentation 2 and the core that formed, fibre length is shorter.Accordingly, it is difficult to control the directionality of fiber, the ratio of the fiber that the thickness direction along the plane from the plane of side to opposite side exists uprises.Then, because of the fiber along this thickness direction, thermal capacitance easily reaches the plane of opposite side from the plane of side as a result, thermal conductivity uprises.
Summary of the invention
Therefore, it is an object of the invention to provide a kind of vacuum heat insulation materials making heat-insulating property improve and refrigerator.
In order to solve above-mentioned problem, for example with the structure described in the scope of claim.The application comprises the scheme of the above-mentioned problem of multiple solution, for one example, a kind of vacuum heat insulation materials, possess the core of fiber assembly and cover the lining material with gas barrier property of above-mentioned core, this vacuum heat insulation materials is characterised by, the thickness (mm) when ordinance load being applied on above-mentioned fiber assembly is divided by every 1m of fiber assembly2Weight (=weight per unit area) (kg/m2) value i.e. comprcssive strength (mm/(kg/m2)) it is more than 23.
Additionally, a kind of vacuum heat insulation materials, there is the core of fiber laminate and cover the lining material of above-mentioned core, it is characterized in that, the fiber diameter of above-mentioned fiber laminate be D, in the case of a length of L of average fiber, D is more than 4.5 μm, and the size value in length and breadth obtained with L/D is for more than 48000.
The effect of the present invention is as follows.
In accordance with the invention it is possible to provide the vacuum heat insulation materials and refrigerator making heat-insulating property improve.
Accompanying drawing explanation
Fig. 1 is the front view of the refrigerator representing present embodiment.
Fig. 2 is the line A-A sectional view of Fig. 1.
Fig. 3 is the axonometric chart representing vacuum heat insulation materials.
Fig. 4 is the line C-C sectional view of Fig. 3.
Fig. 5 is the figure of the manufacture method that glass fibre is described.
Fig. 6 is the front view of the heat pump heat supply hydrophone representing present embodiment.
Fig. 7 is the table of the measurement result of embodiments of the invention 1 to 2 and comparative example 1 to 2.
Fig. 8 is the figure of the generation of the wrinkle that the lining material in comparative example is described.
Fig. 9 A is the figure illustrating to suppress the wrinkle of the lining material in embodiment to produce.
Fig. 9 B is to illustrate to start in time through figure later from the state of Fig. 9 A.
Figure 10 is the table of the measurement result of embodiments of the invention 1 to 2 and comparative example 1 to 2.
In figure:
1 refrigerator, 50,50a, 50b, 50c vacuum heat insulation materials, 51 cores, packaging material in 52,53 lining materials, 53a wrinkle, 100 rotary bodies.
Detailed description of the invention
Referring to the drawings embodiments of the present invention are illustrated.
(structure of refrigerator 1)
Fig. 1 is the front view of the refrigerator 1 representing embodiment.Fig. 2 is the line A-A sectional view of Fig. 1.
The refrigerator 1 of embodiment starts ice making (ice storage) the room 3a of ice, upper strata refrigerating chamber (switching chamber or the quick-freezing room) 3b cooled down with cryogenic temperature and the vegetable compartment 5 of lower floor's refrigerating chamber 4 and folding and unfolding vegetable that have the cold room 2 with refrigerated storage temperature cooling, storage is made from above.
The front openings portion of refrigerating-chamber door 6a, 6b, ice making (ice storage) room door 7a, upper strata refrigerating chamber door 7b, lower floor's refrigerating chamber door 8, vegetable compartment door 9 side, front of opening and closing cold room 2, ice-making compartment 3a, upper strata refrigerating chamber 3b, lower floor's refrigerating chamber 4, each room of vegetable compartment 5 respectively.Foam-thermal insulation 23 and vacuum heat insulation materials 50 it is configured with in each door.
Refrigerating-chamber door 6a, 6b shown in Fig. 1 is the door carrying out rotating centered by hinge 10 etc., the ice-making compartment door 7a beyond it, upper strata refrigerating chamber door 7b, lower floor's refrigerating chamber door 8, the door of all drawer types of vegetable compartment door 9.
If the ice-making compartment door 7a of drawer type, upper strata refrigerating chamber door 7b, lower floor's refrigerating chamber door 8, vegetable compartment door 9 being pulled out, then the container constituting each room is drawn out together with door.
On each refrigerating-chamber door 6a, 6b, ice-making compartment door 7a, upper strata refrigerating chamber door 7b, lower floor's refrigerating chamber door 8, vegetable compartment door 9, for airtight and refrigerator main body 1H(with reference to Fig. 2) between sealing member (not shown) be arranged on the edge, periphery of refrigerator main body 1H side.
It is configured to carry out delimiting and adiabatic separation adiabatic wall 12 to it between the cold room 2 of refrigerated storage temperature and ice making (ice storage) the room 3a of cryogenic temperature and upper strata refrigerating chamber 3b.Separate the adiabatic wall that adiabatic wall 12 is thickness 30～50mm degree, can individually use foamed polystyrene, foam-thermal insulation (hard polyurethane foams), vacuum heat insulation materials etc. or combine these multiple adiabators and formed.
Being identical cryogenic temperature band between ice-making compartment 3a and upper strata refrigerating chamber 3b and lower floor's refrigerating chamber 4, temperature difference is identical or less, therefore arranges and forms the partition member 13 of sealing member bearing plane rather than divide and adiabatic separation adiabatic wall.
It is provided for carrying out dividing and adiabatic separation adiabatic wall 14 to it between lower floor's refrigerating chamber 4 and the vegetable compartment 5 of vegetable storage temperature of cryogenic temperature.Separate the adiabatic wall that adiabatic wall 14 is 30～50mm degree in the same manner as separating adiabatic wall 12, made by foamed polystyrene or foam-thermal insulation (hard polyurethane foams), vacuum heat insulation materials etc. equally.So, the separation essentially for the refrigerated storage temperature storeroom different from the storage temperature band of cryogenic temperature is provided with the separation adiabatic wall 12,14 with thermal insulation.
Foamed polystyrene 33 and vacuum heat insulation materials 50b can also be used to constitute as in figure 2 it is shown, separate adiabatic wall 12,14, be not particularly limited.
Additionally, as it is shown in figure 1, start from above in the inside of refrigerator main body 1H to be respectively divided formation cold room 2, ice-making compartment 3a and upper strata refrigerating chamber 3b, lower floor's refrigerating chamber 4, the storeroom of vegetable compartment 5, but the configuration for each storeroom is not particularly limited to this.It addition, about refrigerating-chamber door 6a, 6b, ice-making compartment door 7a, upper strata refrigerating chamber door 7b, lower floor's refrigerating chamber door 8, vegetable compartment door 9, make use of the opening and closing of rotation, utilize the opening and closing of pull-out and the segmentation number etc. of door to be also not particularly limited.
Refrigerator main body 1H shown in Fig. 2 possesses PCM(Pre-Coated-Metal) the outer container 21 and ABS(Acrylonitrile Butadiene Styrene of the steel plate of steel plate etc.) the resinous interior case 22 of resin etc..Interior case 22 is formed with cold room 2, ice-making compartment 3a and upper strata refrigerating chamber 3b, lower floor's refrigerating chamber 4, vegetable compartment 5.
The space being formed between outer container 21 and interior case 22 arranges insulation as adiabatic space 1s, and each storeroom in refrigerator main body 1H and space outerpace are carried out thermal insulation.
Adiabatic space 1s between this outer container 21 and interior case 22 configures vacuum heat insulation materials 50, and the adiabatic space 1s beyond vacuum heat insulation materials 50 fills the foam-thermal insulations 23 such as hard polyurethane foams.To be described below about vacuum heat insulation materials 50, not shown fixed component, support member etc. be fixedly supported on outer container 21 or interior case 22, or be fixed on outer container 21 or interior case 22 by bonding agent.
It addition, for the temperature that each rooms such as cold room 2, ice-making compartment 3a, upper strata refrigerating chamber 3b, lower floor's refrigerating chamber 4, vegetable compartment 5 are cooled to regulation, ice-making compartment 3a, lower floor's refrigerating chamber 4 dorsal part equipped with cooler 28(with reference to Fig. 2).
This cooler 28, compressor 30, condenser 31 connect not shown capillary tube, constitute freeze cycle.
Above cooler 28, it is equipped with the cold air using cooler 28 cooling in the inner loop of refrigerator 1 thus is maintained at the pressure fan 27 of the cryogenic temperature of regulation.
It addition, be formed with recess 40 in the rear portion of the upper surface 1H1 of the refrigerator main body 1H shown in Fig. 2, this recess 40 is for accommodating the power supply board etc. installing electric component 41.Utilize the controlling organization of the power supply board etc. being provided with electric component 41, control the various cooling operatings of refrigerator 1, the driving/stopping etc. of each function.Further, at the cover 42 being arranged over coating electrical parts 41 of recess 40.Consider that appearance design, the internal volume guaranteeing refrigerator 1 and thermostability, the level configurations of cover 42 become the height roughly the same with the end face 1H1 of refrigerator main body 1H.Although not being particularly limited to, but in the case of the end face 1H1 of the aspect ratio refrigerator main body 1H of cover 42 highlights more laterally, it is desirable to the scope within 10mm.
It is accompanied by this, recess 40 is due to the state configuration of the recess 40 with the space that only accommodate electric component 41 recessed to foam-thermal insulation 23 side (inside case), therefore in the case of being intended to guarantee adiabatic thickness, prominent inside case, necessarily cause the internal volume sacrifice of refrigerator 1.On the other hand, in the case of the internal volume of refrigerator 1 to be made is bigger, cause the lower thickness of foam-thermal insulation 23 between recess 40 and interior case 22.Therefore, as in figure 2 it is shown, configure vacuum heat insulation materials 50a in the foam-thermal insulation 23 opposed with recess 40 and guarantee and strengthen heat-insulating property.In the present embodiment, vacuum heat insulation materials 50a is formed in the way of the housing to cross over not shown lamp inside the box and electric component 41 a vacuum heat insulation materials 50a of substantially z-shaped shape.
Additionally, owing to the compressor 30 being arranged in the Machine Room of the lower backside (bottom right of the refrigerator main body 1H of Fig. 2) of the refrigerator main body 1H shown in Fig. 2, condenser 31 are the parts that heating is big, therefore to prevent the heat intrusion of the interior case 22 in case, configure vacuum heat insulation materials 50c on the perspective plane of compressor 30, inside case 22 side of condenser 31.Additionally, in fig. 2, vacuum heat insulation materials 50 is divided into multiple but it also may be configured to by single vacuum heat insulation materials 50c many places bending to cover between front, Machine Room and vegetable compartment 5 rear heat movement structure.In this case, the heat of the lining material (will be described below in detail) having passed through vacuum heat insulation materials 50 is mobile, so-called heat bridge phenomenon is suppressed, and improves heat-insulating property.
(basic structure of vacuum heat insulation materials 50)
Secondly, use Fig. 3, Fig. 4 to vacuum heat insulation materials 50(50a, 50b, 50c) structure illustrate.Fig. 3 is the axonometric chart representing vacuum heat insulation materials.Fig. 4 is the line C-C sectional view of Fig. 3.
Vacuum heat insulation materials 50 is configured to have: for forming the core 51 in the space of vacuum；For this core 51 being remained the interior packaging material 52 of compressive state；The adsorbent 54 of adsorption moisture, gas etc.；And lining material 53, this lining material 53 covers packaging material 52 in utilizing and remains the core 51 of compressive state and have gas barrier layer.Additionally, in the diagram, adsorbent 54 is shown emphatically.
Lining material 53 is arranged in outside the two sides of vacuum heat insulation materials 50, and to utilize heat to melt the bag-shaped composition of conjunction one fixed width part of applying ointment or plaster from the outer rim of the laminate film of equal size.Prevent from forming heat bridge additionally, the position 50h of laminating turns back in center side.
About the core 51 of vacuum heat insulation materials 50, as the layered product of the inorfil not using binding agent etc. bonding or to link, using fiber diameter is the glass cotton of following example.
About core 51, by using the layered product of inorganic series fiber material, owing to extraneous gas (generation of gas) tails off, it is thus advantageous to heat-insulating property, but the most special it is defined in this, such as, can also be the inorfil etc. such as ceramic fibre or asbestos, glass cotton, glass fiber, aluminium oxide, sial, silicon dioxide, asbestos, carborundum.According to the kind of core 51, there is also the situation that need not interior packaging material 52.
It addition, about core 51, in addition to inorganic series fiber material, additionally it is possible to use organic system resin fibre material.In the case of organic system resin fibre, as long as the performance that can reach the core 51 as heat resisting temperature etc. is not particularly limited the most in use.Specifically, utilize melt-blown method or spun-bond process etc. that the fibers such as polystyrene, polyethylene terephthalate, polypropylene are turned to the fibre diameter of following example, but as long as being Fibrotic organic system resin, fiberization process to be not particularly limited.
The material that bulk density that fiber assembly is preferably made up of inorfil or organic fiber is low, the comprcssive strength of fiber assembly measures as follows.Fiber assembly is cut into the size (cutting into 100mm × 100mm) of regulation, with every 100mm2Mode imposed load for 25g.By the state estimating with imposed load after the thickness of fiber assembly (unit: mm), divided by unit are (every 1m of fiber assembly2Unit of weight: kg/m2) value as comprcssive strength (unit: mm/(kg/m2)).This comprcssive strength is the highest, and the resistance for load is the biggest, becomes and is suitable to the core that shape maintains.It addition, as bondable fibers method each other, having use binding agent, hot pressing etc., if using these methods, then fiber is bonded to each other thus comprcssive strength uprises, but the point of bondable fibers becomes the passage of heat, and thermal conductivity deteriorates, thus undesirable.
The assay method of fibre diameter (footpath) is as follows: fiber will carry out spinning and make fiber assembly, and obtains the meansigma methods of the measured value of 30 with microscope after amplifying.
Additionally, in the present embodiment, have and utilize microscope to be amplified method for measuring, the assay method utilizing fibre fineness pneumatic measurement device to carry out.Fibre fineness pneumatic measurement device is to measure the metrical instrument that cotton etc. fibre number measures, and is the instrument measuring fibre number by measuring a certain amount of fiber block relative to the resistance of air stream.Specifically, the fiber of constant weight is contained on specimen holder in the way of becoming a constant volume, the air of conveying certain pressure.Further, by reading air mass flow now, fibre diameter is measured with micron order.
About fibre diameter, although the thinnest, but in view of to the misgivings of environment, industrial productivity ratio, it is desirable to below 10 μm, and more preferably below 5.2 μm.
About the stepped construction of lining material 53, as long as there is gas barrier property and can thermally welded being not particularly limited, in the present embodiment, the laminate film being made up of surface (protection) layer, the first gas barrier layer, the second gas barrier layer, this four-layer structure of hot melt coating is made.
Surface layer is the resin film of the effect with protection material; first gas barrier layer arranges metal vapor deposition layer on resin film; second gas barrier layer arranges metal vapor deposition layer on the resin film that oxygen barrier is high, and the first gas barrier layer and the second gas barrier layer are fitted in the way of metal vapor deposition layer is the most facing.About hot melt coating, employ the thin film that hygroscopicity is low in the same manner as surface layer.
Specifically, the surface layer of lining material 53 is each thin film that twin shaft extends polypropylene type, polyamide, polyethylene terephthalate etc., first gas barrier layer is that the twin shaft of band aluminium-vapour deposition extends the twin shaft that pet film, the second gas barrier layer are band aluminium-vapour deposition and extends the twin shaft of ethylene-vinyl alcohol copolymer (ethylene-vinyl alcohol copolymer) resin film or band aluminium-vapour deposition and extend polyvinyl alcohol resin thin film or aluminium foil, and hot melt coating is each thin film not extending types of polyethylene, polypropylene etc..
About the Rotating fields of laminate film, the material of this four-layer structure, it is not particularly limited in this.Such as, as the first and second gas barrier layers, metal forming or the resin system gas barrier layer coating material of inorganic layered compounds, polyacrylic acid etc., DLC(diamond-like carbon film are set on resin system thin film) etc. formation gas barrier film, the polybutylene terephthalate (PBT) thin film using such as oxygen barrier high at hot melt coating can also.About surface layer, although be the protection material of the first gas barrier layer, but in order to make the vacuum exhaust efficiency in the manufacturing process of vacuum heat insulation materials 50 also good, the resin that preferred disposition hygroscopicity is low is advisable.
It addition, generally, the resin system thin film beyond the metal forming that the second gas barrier layer is used, cause gas barrier property substantially to deteriorate due to moisture absorption, therefore low to hot melt coating configuration hygroscopicity resin, thus while suppressing the deterioration of gas barrier property, the hygroscopic capacity that inhibition layer laminate film is overall.Thus, even if in the vacuum exhaust operation of the vacuum heat insulation materials 50 above described, additionally it is possible to reduce the water quantities that lining material 53 is brought into, vacuum exhaust efficiency is therefore significantly increased, relevant to the high performance of heat-insulating property.
In addition, the stacking (laminating) of each thin film is generally by the biliquid atherosclerotic type urethanes bonding agent hardened with biliquid reaction heat and utilizes dry type layered manner to fit, but the method for the kind of bonding agent, laminating is not particularly limited to this, it is also possible to be the laminating that make use of other method such as wet type layered manner, heat lamination method.
It addition, about interior packaging material 52, employ in the present embodiment can be thermally welded polyethylene film, about adsorbent 54, employ the synthetic zeolite of physical adsorption type, but be all not limited to these materials.About interior packaging material 52, as long as the hygroscopicity such as polypropylene film, pet film, polybutylene terephthalate (PBT) thin film are low, can thermally welded and material that extraneous gas is few.
About adsorbent 54, being the adsorbent of adsorption moisture, gas, physical absorption, any of chemical reaction type absorption can, it is possible to uses silica gel, calcium oxide, synthetic zeolite, activated carbon, potassium hydroxide, sodium hydroxide, Lithium hydrate etc..
(manufacture method of fiber assembly (glass fibre))
The core 51 used as vacuum heat insulation materials 50, is illustrated the situation of the glass cotton employing fiber assembly.Glass cotton not because of binding agent combine, hot pressing and thermmohardening, be not frozen into tabular but there is flexibility, to have the state to scolding property of compression direction, be high density polyethylene (HDPE) by interior packaging material 52(as an example) pack after be de-gassed.In core 51 after temporarily compressing by this interior packaging material 52 inserts bag-shaped lining material 53 and behind Kaifeng, internal packaging material 52 is vacuum-packed in lining material 53 simultaneously, thus is formed as vacuum heat insulation materials 50.The glass forming glass cotton uses borosilicate glass.
Here, Fig. 5 is the figure of the manufacture method that glass fibre is described.Rotary body 100(rotator towards hollow cylindrical) bottom, put into melten glass G from the nozzle 101 being connected with glass melting furnace 100.Around rotary shaft 103 rotate at high speed, input melten glass G utilizes rotary body 100 side of sidewall portion that acts on of centrifugal force to rise to the rotary body 100 of hollow cylindrical.Further, the multiple pores 105 from the sidewall being formed at rotary body 100 allot melten glass G.The melten glass G sprayed is radiated mechanism by flames such as the heating arrangements 102(burners carrying out heating on arrow H direction) heating.Here, arrow H direction is the direction of the above-below direction along the multiple pores 105 being located at rotary body 100 sidewall.
It addition, have gas-venting mechanism 104 in the periphery of the outlet (near the afterbody of arrow H) of heating arrangements 102, this gas-venting mechanism 104 continuously with concentric circles or is separated with compartment of terrain and is arranged in the lateral wall circumference of rotary body 100 and discharges gas.
In the structure shown here, be formed as the fiber of lines to the outside melten glass G discharged of rotary body 100 from multiple pores 105.This fiber is directed and by thin footpathization and advance downwards on the heating direction H of heating arrangements 102, and utilizes the gas in the arrow F direction discharged from gas-venting mechanism 104, adjusts the length of fiber, the density etc. of fiber assembly.
So glass fibre after spinning utilizes compacting devices (not shown) to be laminated to the density of equalization.But, the cumulative time along with spinning is elongated, and the pore 105 of rotary body 100 becomes larger because of friction etc..Therefore, also there is the tendency become larger in fibre diameter.
If fibre diameter becomes big, then individual heat conduction becomes easy, and heat conduction resistance diminishes.Further, in the case of employ this fiber as vacuum heat insulation materials, there is the tendency deteriorated in heat-insulating property.
In order to prevent the deterioration of this heat-insulating property, as long as when the pore 105 of rotary body 100 reaches a certain size, it is replaced with new rotary body 100, if but be replaced as frequently as rotary body 100 in a short time, then cost uprises, and damages productivity ratio, thus undesirable.
This ratio shared by space i.e. assay method of voidage in the space being in vacuum state here, following presentation is in vacuum heat insulation materials 50, beyond the core 51 of the inside of the interior packaging material 52 in the cross section of vacuum heat insulation materials 50 and core 51.
First, make and be prepared to the fibre diameter of regulation, the microglass fiber of fiber length, make and be used as vacuum heat insulation materials 50(core specification 20 × 20 × 10t(mm that the voidage of core (core 51) measures)).Then, in order to prevent the shape distortion of vacuum heat insulation materials 50 when observing internal, fill vacuum heat insulation materials in the epoxy, cut off afterwards, be ground, make voidage test sample.
About made sample, scanning electron microscope (Hitachi's model S-4200) is used to implement secondary electron image shooting, captured secondary electron image is carried out image analysis, certain area of the inside calculating interior packaging material 52 by percentage rate does not exist the area (spatial area) of microglass fiber as voidage.
The voidage of the vacuum heat insulation materials of the present embodiment is more than 90%.Thus, the heat conduction from fiber contact each other is suppressed, and heat-insulating property improves.
Embodiments of the invention are described in detail by accompanying drawing used below.Additionally, invention is not limited to this embodiment.
(embodiment 1)
The vacuum heat insulation materials 50 of embodiment 1 uses glass cotton as core 51.Glass is carried out melt spinning and makes by glass cotton.The glass forming glass cotton employs borosilicate glass.By glass after melting furnace is melted with the temperature of about 1300 DEG C, carry out spinning employing the centrifuging of metal rotary body 100.Fiber after spinning on the conveying equipment have attracting mechanism with unit are as 1400g/m2Mode assemble.Unit are is to specify that at the fiber making gathering be 1m as understood from unit2Size time weight.It addition, for the thickness investigating the fiber after spinning, when measuring with fibre fineness pneumatic measurement device, fiber diameter is 3.5 μm.
It addition, when measuring the length of the fiber taked immediately below rotary body 100, the most about 350mm.Further, it is 25.7 when measuring comprcssive strength.
After the glass cotton that so obtains being cut off by the size of width 500mm × length 1000mm, after the kiln dried 30 minutes of 200 DEG C, it is laminated two unit ares 1400g/m2Glass cotton, getter (UNION Showa system, molecular sieve 13X) is dispersed in the interlayer of glass cotton, and put in sewing on three limits and becoming bag-shaped lining material, after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 points of evacuation with diffusion pump again, by heat seal, the end of bag is carried out sealing.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 116(index).Insulating characteristics exponential representation, the highest insulating characteristics of index is the best.
Can be clear and definite according to this result: obtained the vacuum heat insulation materials that thermal insulation is the most excellent.
Then, make the vacuum heat insulation materials 50 of all size by same method, use this material and be applied to the refrigerator 1 of Fig. 2.Measure the situation consuming electric power of this refrigerator 1 compared with the situation using the making of conventional vacuum heat insulation materials, reduce the result of about 3%.It follows that by the vacuum heat insulation materials using the present embodiment, can be clear and definite: refrigerator 1(can be needed the equipment of the thermal insulation of low-temp. portion and high-temperature portion) consumption electric power suppress relatively low.
(embodiment 2)
The vacuum heat insulation materials of embodiment 2 similarly to Example 1, uses glass cotton as core.When measuring the thickness of the fiber after spinning with fibre fineness pneumatic measurement device, fiber diameter is 3.5 μm.It addition, when measuring the length of the fiber taked immediately below rotary body 100, average out to about 180mm.And it is 23.4 when measuring comprcssive strength.
After being cut off with the size of width 500mm × length 1000mm by the glass cotton so obtained, after being dried 30 minutes in the drying oven of 200 DEG C, it is laminated two unit ares 1400g/m2Glass cotton, put in having sewed on three limits and having become bag-shaped lining material together with getter (UNION Showa system, molecular sieve 13X), after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 minutes evacuation with diffusion pump again, by heat seal, the end of bag is carried out sealing.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 120(index).
Can be clear and definite according to this result: obtained the vacuum heat insulation materials that thermal insulation is the most excellent.
Then, making size 800mm × 1200mm, the vacuum heat insulation materials of thickness 15mm by same method, the adiabator as the water storage container of heat pump heat supply hydrophone uses.Fig. 6 represents schematic cross-section.The water storage container 60 of heat pump heat supply hydrophone stores with the warmed-up hot water of heat pump unit.In the case of not using hot water, if the hot water temperature in container declines, then need to reheat, therefore cause the coefficient of performance (COP:Coefficient of Performance) of hot water supply device to decline.When the COP of the situation comparing the vacuum heat insulation materials 50 applying the present embodiment and the situation that employs conventional vacuum heat insulation materials, confirm and improve about 10%.Thus can be clear and definite: can the consumption electric power of heat pump heat supply hydrophone (needing the adiabatic equipment of high-temperature portion) be suppressed relatively low.
(comparative example 1)
Comparative example 1 uses glass cotton as core in the same manner as embodiment 1,2.When measuring the thickness of the fiber after spinning with fibre fineness pneumatic measurement device, fiber diameter is 6.0 μm.It addition, when measuring the length of the fiber taked immediately below rotary body 100, the most about 250mm.Further, it is 21.7 when measuring comprcssive strength.
After being cut off with the size of wide 500mm × length 1000mm by the glass cotton so obtained, after being dried 30 minutes in the drying oven of 200 DEG C, it is laminated two unit ares 1400g/m2Glass cotton, put in sewing on three limits and becoming bag-shaped lining material together with getter (UNION Showa system, molecular sieve 13X), after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 minutes evacuation with diffusion pump again, by heat seal, the end of bag is carried out sealing.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 100(index).
Can be clear and definite according to this result: compared with embodiment 1,2, fibre diameter is thick, in the case of comprcssive strength is low, insulating characteristics step-down.
(comparative example 2)
Comparative example 2 uses glass cotton as core in the same manner as comparative example 1.When measuring the thickness of the fiber after spinning with fibre fineness pneumatic measurement device, fiber diameter is 4.2 μm.It addition, when measuring the length of the fiber taked immediately below rotary body 100, the most about 250mm.Further, in this comparative example, glass cotton hot pressing at 450 DEG C be machined 5 minutes.It is 6.3 when measuring the comprcssive strength of this fiber assembly.
After being cut off with the size of width 500mm × length 1000mm by the glass cotton so obtained, after the drying oven of 200 DEG C has been dried 30 minutes, it is laminated two unit ares 1400g/m2Glass cotton, together with getter (UNION Showa system, molecular sieve 13X), put in sewing on three limits and becoming bag-shaped outsourcing material, after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 minutes evacuation with diffusion pump, by heat seal, the end of bag is carried out sealing.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 90(index).
Can be clear and definite according to this result: compared with embodiment 1,2, fibre diameter is thick, comprcssive strength low in the case of, insulating characteristics step-down.
(comparative example 3)
Comparative example 3 uses glass cotton as core in the same manner as comparative example 1,2.When measuring the thickness of the fiber after spinning with fibre fineness pneumatic measurement device, fiber diameter is 4.5 μm.It addition, when measuring the length of the fiber taked immediately below rotary body 100 when, the most about 200mm.Further, it is 18.7 when measuring comprcssive strength.
After being cut off with the size of width 500mm × length 1000mm by the glass cotton so obtained, after the drying oven of 200 DEG C has been dried 30 minutes, it is laminated two unit ares 1400g/m2Glass cotton, put in sewing on three limits and becoming bag-shaped outsourcing material together with getter (UNION Showa system, molecular sieve 13X), after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 minutes evacuation with diffusion pump again, by heat seal, the end of bag is carried out sealing.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 95(index).
Can be clear and definite according to this result: compared with embodiment 1,2, fibre diameter is thick, comprcssive strength low in the case of, insulating characteristics step-down.
Summarize above result, according to Fig. 7, if fibre diameter diminishes, then heat conductivity also step-down, there is the tendency that the heat-insulating property of vacuum heat insulation materials improves.
If it addition, comprcssive strength is little, then cannot estimate increasing substantially of heat-insulating property, being therefore controlled making fiber length elongated and making comprcssive strength is more than 23.Thereby, it is possible to obtain the vacuum heat insulation materials that thermal insulation is excellent.
Secondly, the generation to the wrinkle of suppression lining material illustrates.Fig. 8 is the figure of the generation of the wrinkle that the lining material in comparative example is described.Fig. 9 A is the figure illustrating to suppress the generation of the wrinkle of the lining material in embodiment.Fig. 9 B is to illustrate from the state of Fig. 9 A figure after certain time.Additionally, for the core 51 in each figure, schematically represented to easily hold the direction of fiber.
The comparative example of the situation that expression fiber length is shorter in fig. 8.In the case of the fiber length of core 51 is shorter, the directionality of the fiber of the fiber assembly being contained in lining material 53 is uneven, and the fiber of through-thickness exists with considerable proportion relative to the fiber along in-plane.In the case of Gai, if reducing pressure in lining material 53, then there is the position than plurality in the fiber extended at through-thickness, lining material 53 is introduced into core 51 side.Then, the lining material 53 in the part being introduced into produces wrinkle 53a.If at the vacuum heat insulation materials 50 of comparative example, produce wrinkle 53a, then, in, core 51 that repulsion, elastic force are weak short at fiber, do not possess opposing decompression power and the power that pushed back by wrinkle 53a.Then, the method not having to repair the wrinkle 53a of the lining material 53 once produced.
On the other hand, the fiber length of embodiment is long as shown in Fig. 9 A, Fig. 9 B, is readily obtained the directionality along in-plane.If reducing pressure in the structure shown here, the most as shown in Figure 9 A, lining material 53 is introduced into core 51 side in a part and temporarily will form wrinkle 53a.But, the fiber length of the fiber assembly constituting core 51 is longer, has the directionality along in-plane, and comprcssive strength is more than 23.Therefore, the power possessing opposing decompression power and released outward by wrinkle 53a and make it stretch.Thus, possess the power of the state being recovered to Fig. 9 B, therefore, it is possible to the formation of the wrinkle 53a of suppression lining material 53.If producing the wrinkle 53a of lining material 53, then crack in this part, cause gas barrier property to reduce, it is difficult to long term maintenance vacuum.
In embodiments, owing to the formation of wrinkle 53a is suppressed, therefore, it is possible to the gas barrier property of long term maintenance lining material 53, it is possible to long term maintenance heat-insulating property.
It addition, the vacuum heat insulation materials of each embodiment can also be applied to necessary adiabatic various equipment, building component, particularly wall material etc..
(embodiment 3)
With reference to Fig. 3, Fig. 4, Figure 10, embodiments of the invention 3 are illustrated.Figure 10 is the table of the measurement result of embodiments of the invention 3 to 4 and comparative example 4 to 5.
In embodiment 3, as the fiber assembly of the core becoming vacuum heat insulation materials, the fiber diameter employing fiber is 5.2 μm, the fiber assembly of a length of 250mm of average fiber.
The assay method of fibre diameter is the meansigma methods of measured value utilizing microscope to take 30 after the structure that fibre spinning becomes fiber assembly being amplified.
Additionally, in the present embodiment, utilize microscope to be exaggerated mensuration, but also utilize the assay method that fibre fineness pneumatic measurement device carries out.Fibre fineness pneumatic measurement device is the metrical instrument measuring cotton etc. fibre number, is the instrument measuring fibre number by measuring a certain amount of fiber block relative to the resistance of air stream.Specifically, the fiber of constant weight is contained on specimen holder in the way of a constant volume, the air of conveying certain pressure.Further, by reading air mass flow now, fibre diameter is measured with micron order.
Long about average fiber, during fibre spinning, after being just fiberized, just assemble fiber, it is long that the meansigma methods of the fibre length of the gathering of the state being the most mutually wound around from fiber obtains average fiber.Additionally, long in order to measure the fiber of primary fiber and the glass cotton that becomes fiber assembly, owing to fiber is wound around each other, therefore untie the fiber of primary fiber or amplify a fiber and be measured.Additionally, in the method just having carried out fiber being measured after spinning, easily measure.
It addition, when fiber diameter being set to D, average fiber length being set to L, the big fiber of the size value in length and breadth that represents with L/D is big and be easy mutually wound around, therefore easily arrangement on the in-plane shown in Fig. 4 to the ratio of fibre diameter due to fiber length.In other words, owing to fiber is difficult to towards thickness direction, therefore, it is possible to reduce the heat conductivity to thickness direction.
On the other hand, for the fiber that size value in length and breadth (L/D) is little, fiber length is little to the ratio of fibre diameter, and short fiber arranges the most in a thickness direction, it is difficult to arrange in the in-plane direction.Therefore, occur to the tendency that the heat conductivity of thickness direction is high.
The fiber assembly of this embodiment 3 use fiber diameter D of fiber be 5.2 μm, the long L of average fiber be 250mm, in length and breadth size value (L/D) be 48077 fiber assembly make.
After being cut off with the size of width 500mm × length 1000mm by glass cotton, after being dried 30 minutes in the drying oven of 200 DEG C, it is laminated two unit ares 1400g/m2Glass cotton, getter (UNION Showa system, molecular sieve 13X) is dispersed between fiber assembly layer, put in sewing on three limits and becoming bag-shaped lining material, after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 minutes evacuation with diffusion pump again, by heat seal, the end of bag is carried out sealing.Additionally, unit are is every 1m of fiber assembly2Weight, unit kg represents.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 200(index).Insulating characteristics is with exponential representation, and index is the highest, insulating characteristics is the best.Can be clear and definite according to this result: the vacuum heat insulation materials that thermal insulation is the most excellent can be made.
(embodiment 4)
The vacuum heat insulation materials of embodiment 4 employ fiber diameter D of fiber be 4.5 μm, the long L of average fiber be 250mm, in length and breadth size value (L/D) be the fiber assembly of 55556.
If the most relatively, fiber diameter D of fiber is little, and long L is identical for average fiber, and size value (L/D) becomes big the most in length and breadth.
After being cut off with the size of width 500mm × length 1000mm by glass cotton, after being dried 30 minutes in the drying oven of 200 DEG C, it is laminated two unit ares 1400g/m2Glass cotton, put in sewing on three limits and becoming bag-shaped outsourcing material together with getter (UNION Showa system, molecular sieve 13X), after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 minutes evacuation with diffusion pump again, by heat seal, the end of bag is carried out sealing.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 218(index).Insulating characteristics exponential representation, index is the highest, insulating characteristics is the best.Can be clear and definite according to this result: the vacuum heat insulation materials that thermal insulation is the most excellent can be made.
(comparative example 4)
The vacuum heat insulation materials of comparative example 4 employ fiber diameter D of fiber be 6.0 μm, the long L of average fiber be 70mm, in length and breadth size value (L/D) be the fiber assembly of 11667.If compared with embodiment 3,4, then fiber diameter D of fiber is big, long L is little for average fiber, and size value (L/D) diminishes the most in length and breadth.
After being cut off with the size of width 500mm × length 1000mm by glass cotton, after being dried 30 minutes in the drying oven of 200 DEG C, it is laminated two unit ares 1400g/m2Glass cotton, put in sewing on three limits and becoming bag-shaped outsourcing material together with getter (UNION Showa system, molecular sieve 13X), after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 minutes evacuation with diffusion pump again, by heat seal, the end of bag is carried out sealing.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 100(index).This understands compared with embodiment 3,4, then fiber diameter D of fiber is big, and therefore heat conduction resistance diminishes, thus cause heat conductivity to uprise, owing to the long L of average fiber is little, therefore fiber arranges the most in a thickness direction, it is difficult to arrange in the in-plane direction, therefore uprises to the heat conductivity of thickness direction.
It addition, in the case of fiber is short, deform in the way of landfill fiber gap each other during decompression, it is difficult to form space.Therefore, fiber contact each other becomes many, and by contact, heat propagation becomes easy.
According to this result, compared with embodiment 3,4, in the case of size value in length and breadth (L/D) is little, insulating characteristics step-down.
(comparative example 5)
The vacuum heat insulation materials of comparative example 5 employ fiber diameter D of fiber be 6.8 μm, the long L of average fiber be 180mm, in length and breadth size value (L/D) be the fiber assembly of 26471.
If compared with comparative example 4, then fiber diameter D and the long L of average fiber of fiber becomes big, and size value (L/D) becomes big in length and breadth.
After being cut off with the size of width 500mm × length 1000mm by glass cotton, after being dried 30 minutes in the drying oven of 200 DEG C, it is laminated two unit ares 1400g/m2Glass cotton, put in sewing on three limits and becoming bag-shaped outsourcing material together with getter (UNION Showa system, molecular sieve 13X), after the inside of bag being carried out 10 minutes evacuation with drum pump, after carrying out 10 minutes evacuation with diffusion pump again, by heat seal, the end of bag is carried out sealing.
The AUTO-λ using English great essence machine (strain) to make determines insulating characteristics to obtained vacuum heat insulation materials (thickness: about 12mm) at 10 DEG C.Insulating characteristics is 126(index).
This is because, as comparative example 4, compared with embodiment 3,4, fiber diameter is big, and therefore heat conduction resistance is little, and heat conductivity uprises.Further, since average fiber length, therefore fiber arranges in a thickness direction, uprises to the heat conductivity of thickness direction.
Can be clear and definite according to this result: compared with embodiment 3,4, in the case of size value in length and breadth (L/D) is little, insulating characteristics step-down.
In sum, according to Figure 10, long by controlling fiber so that the fiber diameter of fiber be more than 4.5 μm, in length and breadth size value (L/D) be more than 48000 such that it is able to obtain the vacuum heat insulation materials that thermal insulation is the most excellent.
If it addition, the spinning time is elongated, then the fine pore of rotary body becomes big because friction waits, and the tendency become larger also occurs in the diameter of the fiber carrying out spinning.It addition, if fibre diameter becomes big, then heat conduction resistance diminishes, and causes heat conductivity to uprise.Therefore, in the present embodiment, making size value in length and breadth be more than 48000 by controlling fiber length, even if using rotary body for a long time, fibre diameter becomes big, by controlling the relation size value the most in length and breadth with fiber length, it is also possible to the decline of suppression heat-insulating property.
It addition, by make size value in length and breadth be more than 48000, makes voidage be more than 90%, the heat conduction at the contact of the fiber being mutually wound around is suppressed, it is possible to make the vacuum heat insulation materials that heat-insulating property is excellent.
Claims (7)
1. a vacuum heat insulation materials, possesses the core of fiber assembly and covers having of above-mentioned core
The lining material of gas barrier property, this vacuum heat insulation materials is characterised by,
With every 100mm on above-mentioned fiber assembly before evacuation2When applying load for the mode of 25g
Thickness (mm) is divided by every 1m of fiber assembly2Weight (kg/m2) value i.e. comprcssive strength (mm
/(kg/m2)) it is more than 23.
Vacuum heat insulation materials the most according to claim 1, it is characterised in that
Wrinkle is released and makes it stretch by above-mentioned core outward that possess above-mentioned comprcssive strength, this wrinkle be because of
Decompression in above-mentioned lining material makes above-mentioned lining material introduce to above-mentioned core side and be formed.
Vacuum heat insulation materials the most according to claim 1 and 2, it is characterised in that
The voidage of above-mentioned core is more than 90%.
4. a vacuum heat insulation materials, has the core of fiber laminate and covers the coating of above-mentioned core
Material, it is characterised in that
Above-mentioned fiber laminate uses glass cotton, and the fiber diameter at above-mentioned glass cotton is D, averagely fibre
In the case of tieing up a length of L, D is more than 4.5 μm, the size value in length and breadth obtained with L/D be 48000 with
On.
Vacuum heat insulation materials the most according to claim 4, it is characterised in that
The voidage of above-mentioned core is more than 90%.
6. a refrigerator, is configured with vacuum heat insulation materials and foam-thermal insulation between outer container and interior case,
It is characterized in that,
Above-mentioned vacuum heat insulation materials is the vacuum heat insulation materials described in any one of Claims 1 to 5.
7. possessing an equipment for vacuum heat insulation materials, this equipment has high-temperature portion, it is characterised in that
Above-mentioned vacuum heat insulation materials is described in any one of Claims 1 to 5 that above-mentioned high-temperature portion carries out thermal insulation
Vacuum heat insulation materials.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-166485 | 2012-07-27 | ||
| JP2012-166487 | 2012-07-27 | ||
| JP2012166487A JP5982211B2 (en) | 2012-07-27 | 2012-07-27 | Vacuum insulation, refrigerator, equipment using vacuum insulation |
| JP2012166485A JP5779555B2 (en) | 2012-07-27 | 2012-07-27 | Vacuum insulation and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103574229A CN103574229A (en) | 2014-02-12 |
| CN103574229B true CN103574229B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310056629.3A Expired - Fee Related CN103574229B (en) | 2012-07-27 | 2013-02-22 | Vacuum heat insulation materials, refrigerator, employ the equipment of vacuum heat insulation materials |
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| Country | Link |
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| KR (1) | KR101560355B1 (en) |
| CN (1) | CN103574229B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015137700A1 (en) * | 2014-03-11 | 2015-09-17 | 삼성전자주식회사 | Vacuum insulating material and refrigerator including same |
| KR20150106306A (en) * | 2014-03-11 | 2015-09-21 | 삼성전자주식회사 | Vacuum heat insulating material and refrigerator including the same |
| KR102529852B1 (en) * | 2015-08-03 | 2023-05-08 | 엘지전자 주식회사 | Vacuum adiabatic body and refrigerator |
| WO2017033313A1 (en) * | 2015-08-26 | 2017-03-02 | 三菱電機株式会社 | Vacuum heat-insulating material and refrigerator |
| KR20170047955A (en) * | 2015-10-26 | 2017-05-08 | 삼성전자주식회사 | Vacuum heat insulating material, the method of manufacturing the same and refrigerator including the same |
| CN109690164A (en) * | 2016-09-08 | 2019-04-26 | 三菱电机株式会社 | Vacuumed insulation panel and hot box |
| JP6634040B2 (en) * | 2017-01-20 | 2020-01-22 | 日立グローバルライフソリューションズ株式会社 | Vacuum insulation material, method for manufacturing vacuum insulation material, and refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1425116A (en) * | 2000-04-21 | 2003-06-18 | 松下冷机株式会社 | Vacuum insulating material and device using the same |
| CN1659402A (en) * | 2002-05-31 | 2005-08-24 | 松下冷机株式会社 | Vacuum thermal insulating material, process for producing the same and refrigerator including the same |
| CN101147025A (en) * | 2005-05-23 | 2008-03-19 | 松下电器产业株式会社 | Vacuum heat insulator and testing method for the glass fiber laminate to be used in the insulator |
| CN102278571A (en) * | 2008-12-26 | 2011-12-14 | 三菱电机株式会社 | Vacuum heat insulating material, heat insulating box using vacuum heat insulating material, refrigerator, refrigerating/air-conditioning apparatus, water heater, equipments, and manufacturing method of vacuum heat insulating material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3578172B1 (en) | 2003-12-19 | 2004-10-20 | 松下電器産業株式会社 | Vacuum insulation, refrigerators and refrigerators |
| JP2005344870A (en) * | 2004-06-04 | 2005-12-15 | Matsushita Electric Ind Co Ltd | Vacuum heat insulating material, and refrigerator having the same |
| JP4814684B2 (en) | 2006-04-20 | 2011-11-16 | 日立アプライアンス株式会社 | Vacuum heat insulating material, refrigerator and vehicle using the same |
| JP4545126B2 (en) * | 2006-09-04 | 2010-09-15 | シャープ株式会社 | Vacuum insulation panel and refrigerator using the same |
| JP2011099566A (en) | 2011-02-25 | 2011-05-19 | Hitachi Appliances Inc | Vacuum heat insulating panel and refrigerator |
-
2013
- 2013-02-01 KR KR1020130011655A patent/KR101560355B1/en not_active IP Right Cessation
- 2013-02-22 CN CN201310056629.3A patent/CN103574229B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1425116A (en) * | 2000-04-21 | 2003-06-18 | 松下冷机株式会社 | Vacuum insulating material and device using the same |
| CN1659402A (en) * | 2002-05-31 | 2005-08-24 | 松下冷机株式会社 | Vacuum thermal insulating material, process for producing the same and refrigerator including the same |
| CN101147025A (en) * | 2005-05-23 | 2008-03-19 | 松下电器产业株式会社 | Vacuum heat insulator and testing method for the glass fiber laminate to be used in the insulator |
| CN102278571A (en) * | 2008-12-26 | 2011-12-14 | 三菱电机株式会社 | Vacuum heat insulating material, heat insulating box using vacuum heat insulating material, refrigerator, refrigerating/air-conditioning apparatus, water heater, equipments, and manufacturing method of vacuum heat insulating material |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140013888A (en) | 2014-02-05 |
| CN103574229A (en) | 2014-02-12 |
| KR101560355B1 (en) | 2015-10-15 |
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